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Standards GB are Chinese national standards, which are issued by China's Standardization Administration Office (SAC).
Chinese national standards are used all over China commonly labeled as GB standards. They determine the united production requirements regarding product safety and quality .
GB standards are often modified or created according to the international standards of ISO, IEC or any other international level.
Although, they are largely harmonized, GB standards may differ from international standards .
Approximately 15% of all GB standards are obligatory and they can be identified according to the prefix GB, after which the code of the standards follows:
GB – Obligatory national standards
GB/T – Optional national standards
GB/Z – National steering technical document
Water treatment chemicalsHydrolyzed polymaleic anhydride
Standard published on 8.7.2014
Selected format:Rubber hose, oil suction and discharge, offshore mooring
Standard published on 7.9.2023
Selected format:Rubber hoses and hose assemblies for aircraft ground fuelling and defuelingSpecification
Standard published on 22.12.2014
Selected format:Rubber hoses and hose assemblies—Rubber-covered spiral-wire-reinforced hydraulic types for oil-based or water-based fluids—Specification
Standard published on 9.3.2022
Selected format:Rubber hoses and hose assemblies for liquefied petroleum gas (LPG) in the liquid or gaseous phase and natural gas up to 2,5 MPa - Specification
Standard published on 19.7.2013
Selected format:Method for determination of spectral sensitivity of photographic materials
Standard published on 22.3.1989
Selected format:Method for measuring the root-mean-square (RMS) granularity of photographic materials/process combination
Standard published on 22.3.1989
Selected format:Steels for welded round link chains for mines
Standard published on 12.7.2017
Selected format:Determination of content of nonmetallic inclusions in steel—Micrographic method using standard diagrams
Standard published on 23.5.2023
Selected format:Wrought copper and copper alloys--Detection of residual stress--Mercury nitrate test
Standard published on 22.12.1997
Selected format:Latest update: 2025-08-19 (Number of items: 2 212 995)
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